x - .10x = 54 <-- stated as it should be1x - .1x = 54 <-- As you showed me, with the coefficient in the right place. .9x = 54 Also important for me is the assumed coefficient 1 in x /.9 /.9 Then the (1 - .1) becomes clear x = 60

Thank you , I knew I was missing something. Now I can move on without it nagging at me.